Evaluate the expression 4(x+2−5x) when x=2 .

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?

Write the equations in logarithmic form 10^3=1,000